Turbo Groove automotive brake discs have a widened, arcuate slit that increases the flow of cool air, lowering the temperature of the brake pads and disc, while draining dust, dirt and hot gases better than a straight line, which can rust and become ineffective. Drilled holes remove surface gases when braking from high speed, while not weakening the structure of the disc as in through drilling. TECHNICAL DATA Type: Drilled and Slotted Full / Ventilated: Ventilated Number of holes: 4 Diameter (mm): 247 Height (mm): 44 Thickness (mm): 20 Minimum thickness (mm): 19 Axle application: Front APPLICATION Brand Model Engine Value Power (KM) Year CITROEN VISA 1.4 GT 82-86 CITROEN VISA 1.6 GTI 83-87 CITROEN VISA 1.6 GTI 83-87 PEUGEOT 205 1.3 102 87-92 PEUGEOT 205 1.3 102 87-92 PEUGEOT 205 1.6 90-97 PEUGEOT 205 1.6 90-97 PEUGEOT 205 1.6 CTI 84-93 PEUGEOT 205 1.6 CTI 84-93 PEUGEOT 205 1.6 GTI 84-93 PEUGEOT 205 1.6 GTI 84-93